DSPIC33FJ64GP708AT-I/PT - 16-bit DSC 40MIPS 64KB | Microchip
料号： DSPIC33FJ64GP708AT-I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $9.8 | $9.80 |
| 10 | $8.85 | $88.50 |
| 100 | $7.6 | $760.00 |
| 500 | $6.95 | $3,475.00 |
| 1,000 | $6.3 | $6,300.00 |
DSPIC33FJ64GP708AT-I/PT 概述
A Digital Signal Controller combines the compute architecture of a Digital Signal Processor (DSP) with the peripheral set and ease of use of a microcontroller (MCU). Within the power-management hierarchy of embedded systems, the DSC sits between a general-purpose MCU and a dedicated DSP, making the dsPIC33F family a natural bridge for engineers migrating between Microchip PIC24 MCUs and dsPIC30F DSCs with seamless migration options in similar packages.
Key features include a 16-bit modified Harvard RISC core executing at up to 40 MIPS from a 3.0V to 3.6V supply, 69 general-purpose I/O pins, and rich analog integration with a 24-channel ADC configurable for 10-bit or 12-bit resolution. Communications peripherals cover CAN, I2C, SPI, UART and USART, while system peripherals include DMA, PWM outputs, I2S audio support, AC'97 interface, an undervoltage detection/reset circuit, power-on reset (POR) and a watchdog timer (WDT).
Architecturally, the dsPIC33F core provides DSP-engine resources such as a barrel shifter, hardware multiply-accumulate and boundary-scan (JTAG-capable) debug, enabling filtering and control-loop algorithms alongside general I/O management. In-Circuit Serial Programming (ICSP) via the MPLAB SNAP or similar tools allows firmware updates using two I/O pins plus the reset line.
Typical applications include motor control and digital power conversion, industrial sensing and CAN networking nodes, and audio signal processing where the I2S/AC'97 peripherals and 12-bit ADC serve signal-chain needs.
Design consideration: the device is rated for 3.0V to 3.6V operation (3.3V nominal), so verify rail sequencing and decoupling on all VDD pins of the 80-TQFP; the -40C to +85C industrial grade ('I' suffix) should not be substituted casually for extended-temperature designs (choose the -E variant instead).
This page synthesizes distributor stock data, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone. Pricing shown is as of 2026-09-27.
直接替换替代料： DSPIC33FJ64GP708AT-I/PT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： DSPIC33FJ64GP708AT-I/PT （相同外形与封装尺寸） ——差异在于 Operating Temperature, Package, Packaging, Peripherals, Core Architecture.
快速对比工具——选择替代料号进行并排对比：
DSPIC33FJ64GP708A-I/PT
✅ 直接替换✓ 有现货
$4.18 / 个
查看数据手册 →dsPIC33FJ64GP708-I/PT
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33FJ64GP708AT-E/PT
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33FJ128GP708AT-I/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$5.45 / 个
查看数据手册 →DSPIC33FJ256GP708AT-I/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33FJ64GP802T-I/MR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33FJ64GP708AT-I/PT 最大额定值与电气特性
| Core Processor | dsPIC33F 16-bit RISC DSC core |
| Max CPU Speed | 40 MIPS (40 MHz) |
| Program Memory Size | 64 KB (64K x 8) Flash |
| RAM Size | 16 KB |
| 数据总线宽度 | 16 bit |
| Supply Voltage Range | 3.0 V to 3.6 V (3.3 V nominal) |
| Number of I/O | 69 |
| ADC Resolution | 10-bit / 12-bit |
| ADC Channels | 24 |
| Serial Interfaces | CAN, I2C, SPI, UART, USART |
| Audio Interfaces | I2S, AC'97 |
| Peripherals | DMA, PWM, WDT, POR, Undervoltage detection/reset |
| 工作温度 | -40C to +85C |
| 封装 | 80-TQFP (12x12 mm), 0.5 mm pitch |
| 安装类型 | Surface Mount |
| Packaging | Tape & Reel (T/R) |
| Programming/Debug | ICSP via 2 I/O pins + reset; JTAG boundary scan |
| Series | dsPIC 33F, DSPIC33FJ64GP708A |
DSPIC33FJ64GP708AT-I/PT 80-tqfp (12x12 mm), 0.5 mm pitch 引脚配置指南
DSPIC33FJ64GP708AT-I/PT（80-tqfp (12x12 mm), 0.5 mm pitch 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： DSPIC33FJ64GP708AT-I/PT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33FJ64GP708AT-I/PT 适用于 6 应用s: Industrial Motor Control, CAN Networking and Industrial Automation Nodes, Digital Audio Processing, Digital Power Conversion (SMPS / Solar Inverters), Sensor Acquisition and Data Logging, Automotive-Adjacent Body and Telemetry Systems (Non-Safety).
Industrial Motor Control
The DSPIC33FJ64GP708AT-I/PT fits motor control because its 40 MIPS 16-bit DSP core executes field-oriented control (FOC) loops with hardware multiply-accumulate and a barrel shifter, while 24 ADC channels at 10-bit or 12-bit resolution sample phase currents and bus voltage feedback. PWM outputs drive the inverter gate stage and DMA keeps ADC data flowing without CPU intervention, shortening control-loop latency. Typical usage places the DSC between current-sense amplifiers and a three-phase MOSFET/IGBT gate driver; the quantified benefit is deterministic loop rates in the tens of kHz with headroom for supervision tasks. The -40C to +85C industrial rating and CAN bus support suit factory drive environments.
推荐
CAN Networking and Industrial Automation Nodes
For automation nodes that must talk on a CAN fieldbus, this DSC integrates an on-chip CAN controller alongside UART/SPI/I2C, removing the need for an external CAN peripheral. The 40 MIPS core handles protocol stacks and application logic concurrently, 69 I/O pins interface sensors, relays and displays, and the watchdog timer plus undervoltage detection/reset support unattended operation. The DSP engine also allows local filtering or FFT-based condition monitoring of vibration and current signals before transmission. Deployed at -40C to +85C on a 3.3V rail, the node benefits from ICSP firmware updates in the field, keeping deployed equipment maintainable without desoldering the 80-TQFP device.
推荐
Digital Audio Processing
The integrated I2S and AC'97 audio interfaces make this DSC a strong fit for digital audio endpoints such as amplifiers, mixers and effects units. The 40 MIPS DSP core applies EQ, dynamic-range compression or room-correction filters with hardware MAC throughput, while the 12-bit ADC mode digitizes control inputs or analog sidechain signals. DMA transfers audio frames without CPU stalls, and the 3.0V to 3.6V supply range matches common audio-system rails. In a typical design the DSC sits between an audio codec or S/PDIF receiver and a power-amplifier stage, providing sample-accurate processing at a bill-of-materials cost well below a discrete DSP plus MCU solution.
推荐
Digital Power Conversion (SMPS / Solar Inverters)
Digital switch-mode power supplies and solar micro-inverters need fast, deterministic control loops; this DSC delivers them with 40 MIPS execution, hardware PWM, DMA-driven ADC sampling and DSP instructions for compensator math. The 24-channel 10/12-bit ADC monitors output voltage, input current and temperature across multiple rails simultaneously, and the 69 I/O pins support auxiliary housekeeping. Operating on a 3.3V rail at -40C to +85C suits telecom and industrial power shelves. In a typical topology the DSC closes the feedback loop around a half-bridge or LLC stage at switching frequencies where a conventional MCU would run out of compute, and ICSP enables firmware-updatable control laws.
推荐
Sensor Acquisition and Data Logging
With 24 ADC channels selectable between 10-bit and 12-bit resolution, the DSPIC33FJ64GP708AT-I/PT can multiplex a large sensor array - thermistors, pressure bridges, current shunts - into a single acquisition system without an external analog front end. The 16KB RAM buffers sampled data, DMA streams it to UART or SPI storage, and DSP routines apply digital filtering or RMS computation in real time. The 64KB Flash holds both application and calibration tables, and the 69 GPIOs handle channel selection and status signaling. Industrial environments benefit from the -40C to +85C rating, while the CAN interface allows logged data to feed factory SCADA networks directly.
推荐
Automotive-Adjacent Body and Telemetry Systems (Non-Safety)
Although the '-I' industrial grade is not AEC-Q100 qualified, this DSC is widely used in non-safety automotive-adjacent systems such as telemetry loggers, test-fixture controllers and aftermarket equipment. The CAN interface connects to vehicle buses, the 12-bit ADC mode samples analog telemetry, and the 40 MIPS DSP core runs protocol handling plus signal conditioning concurrently. The 3.0V to 3.6V operation matches standard 3.3V boards, and the 80-TQFP's 69 I/O lines drive gauges, indicators and auxiliary relays. For safety-relevant automotive designs, select a dedicated AEC-Q100-qualified variant of the dsPIC33 family instead of this industrial-grade part.
推荐
推荐产品汇总
工程参考数据： DSPIC33FJ64GP708AT-I/PT ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | DSPIC33FJ64GP708A-I/PT | dsPIC33FJ64GP708-I/PT | DSPIC33FJ64GP708AT-E/PT | DSPIC33FJ128GP708AT-I/PT | DSPIC33FJ256GP708AT-I/PT |
|---|---|---|---|---|---|---|
| Package | 80-TQFP (12x12 mm) | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 64 KB (64K x 8) | 64 KB | 64 KB | 64 KB | 128 KB | 256 KB |
| Core Speed | 40 MIPS (16-bit) | 40 MIPS (16-bit) | 40 MIPS (16-bit) | 40 MHz (16-bit) | 40 MIPS (16-bit) | 40 MIPS (16-bit) |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C | -40C to +85C | Extended (-E grade) | -40C to +85C | -40C to +85C |
| ADC / Key Peripherals | 24ch 10/12-bit ADC; CAN, I2C, SPI, UART, I2S | 24ch 10/12-bit ADC; CAN, I2C, SPI, UART | 24ch ADC; CAN, I2C, SPI, UART | Same peripheral set | Same peripheral set | Same peripheral set |
关键差异点
- Fastest lead time and pricing tier on Tape & Reel （对比 DSPIC33FJ64GP708A-I/PT)
- A-revision errata corrections （对比 dsPIC33FJ64GP708-I/PT)
- Industrial temperature ceiling （对比 DSPIC33FJ64GP708AT-E/PT)
设计说明
The device requires 3.0V to 3.6V on all VDD pins of the 80-TQFP; 3.3V is nominal. Place a 0.1uF ceramic decoupling capacitor at every VDD/VSS pin pair with a solid ground plane, plus at least one 4.7uF to 10uF bulk capacitor near the package. The on-chip undervoltage detection/reset circuit holds the DSC in reset if the rail sags - do not rely on it as a substitute for a proper brown-out regulator. Estimated: with a typical operating current in the tens of mA at 40 MIPS, dissipation stays well under 0.5W, so no heatsink is needed.
The 80-TQFP has a 0.5 mm pin pitch; specify an OSP or ENIG finish and use Microchip's recommended footprints to avoid solder bridging during reflow. Route the ICSP programming pair (PGD/PGC) and MCLR as short, direct traces to a standard programming header so the MPLAB SNAP can reach the device in-circuit - this uses only two I/O pins plus reset. Keep the CAN transceiver as close to the CANTX/CANRX pins as practical, with a stub-free bus topology for signal integrity at bus speeds.
Two frequent mistakes: (1) treating the '-I' part as extended temperature - the industrial range ends at +85C, so enclosures above that require the -E variant; (2) confusing revision levels - the 'A' revision (this part) carries errata corrections over the original dsPIC33FJ64GP708, so read the Microchip errata document for the exact die revision marked on the package before finalizing code that uses DMA or ADC simultaneous-sampling modes. Also verify ADC reference configuration: the 12-bit mode shares channels with the analog peripheral set, so pin multiplexing must be reviewed against the datasheet pin diagrams.
合规信息
Compliance statuses were not stated in the provided web data; verify RoHS/REACH on the Microchip product page or distributor environmental data before production. This industrial '-I' grade part is not AEC-Q100 qualified for automotive safety applications.
